When replacing doors (just like windows) compliance with Building Regulations is critical for fabricators and installers to achieve the ventilation standards set out in Approve Document F (means of ventilation), which was updated and legally enacted in June 2022.

To improve the air quality, thermal comfort and wellbeing of homeowners, most doors should include trickle vents (on the doors or frames) in particular where the door opens into a habitable space and especially when the door is the only opening in a room which has no windows. Other situations where trickle vents are advised for doors is when there are few windows or small windows in a habitable room.

No matter which situation, installing trickle vents on doors and windows is the most practical, viable and economical ventilation solution to meet the regulatory requirements. Over the last decade, Glazpart’s Link Vent has become the trickle vent of choice for window and door companies.

To ensure compliance with Building Regulations, the Link Vent range sizes include 5000, 4000 and 2500 EQA and it can be fitted to UPVC, aluminium and timber doors/frames.

The clever design of the Link Vent makes it simple to install and user friendly for both opening and closing – the innovative closing action allows the closure plate to be positioned so that it reduces draughts by directing air away from occupants.

Smart design, easy fitting, and functionality are fundamental features but it is the huge choice of colours and decorative finishes that sets Glazpart apart from the competition. The Link Vent is perfect for doors as the colours and woodgrains can be perfectly matched to blend in perfectly with the door’s overall design and look.

The colours/finishes are extremely stable and resistant to UV, meaning the vents hold their colour in extreme weather conditions and constant exposure to the elements of weather, without noticeable fading.

Glazpart’s Link Vent premium finish ranges are also available in handy packs of either 10 canopies or internal vents, enabling companies only buy the stock they need and add more value, both in terms of revenue and kerb appeal for homeowners.

In 2025, Glazpart launched the innovative Bi-Fold Vent – a trickle vent specifically manufactured for aluminium bi-fold doors. This shallow height (slim) vent is designed to work within the low hinge stack heights when the doors in a bi-fold system are in the open position – it has unique low-profile louvred canopy design combined with a low profile vent to allow both the internal vent and louvered grille clip in to easily sit between the open concertinaed door leaves.

The Bi-Fold Vent is designed for compliance to the building regulations with the independently tested equivalent area, it sits in a 16mm rout and in many cases, can be located directly into the door leaf or frame, removing the need for expensive additional “knock on” or extended profiles. With a 2700 EQA (per vent), a 3-panel door meets the requirements for background ventilation.

The tried and tested clip design sits perfectly in the low-profile chassis allowing the split closure plates to direct the air away from occupants.

The internal closure plates of the Bi-Fold Door Vent clip onto a uniquely designed low prolife chassis which in turn clips within the aluminium profile, so you only have the height of the lids protruding above the profile. The chassis can be supplied in either white or black dependant on the colour of the patented closure plates with their innovative vertical closure plates.

The external section has a new louvered design, to give the minimum amount of protrusion from the face of the profile. The louvred flyscreen sits beneath the reveal giving additional protection from the elements.

Moulded from high quality virgin ASA,  Bi-Fold Vents are highly temperature and colour stable when compared to UPVC. Initially available in White, Black and Anthracite Grey in standard sets, bespoke and matching colours can also be manufactured (dependent on demand).

Dean Bradley, Glazpart Sales Director summarised, “Ventilation for doors including bi-fold doors, is key for manufacturers and installers. Glazpart has the ideal solutions, not only do our vents help companies comply with regulations and are easy to install, they also leave homeowners pleased with the overall finished look as the vent blends seamlessly with the design and finish of the door.”

For more information on ventilation for doors please contact Dean Bradley dbradley@glazpart.co.uk or visit the Glazpart website Trickle Ventilation – Glazpart